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APPARATUS FOR PREVENTING SMOKING IN PIPE PLAGES. N0. 385,10. PatentJuly-3.188 8.

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NITED STATES PATENT Trice ARMAND GASSIS, OF OHATEAULIN, FRANCE.

SPECIFICATION forming part of Letters Patent No. 385,610, dated July 3,1888.

Application filed February 21, 1885. Serial-No. 264,867.

(No model.) Patented in France September 3, 188 No.185,603.

To all whom, it may concern:

Be it known that I, ARMAND Gassrs. of Ohateaulin, in the Republic ofFrance, have invented a new and useful Improvement in Apparatus toPrevent Smoking in Fire-Places, (for which I have obtained a patent inFrance, No. 185,603, dated September 8, 1887.) which is fully set forthin the following specification.

This invention has reference to the constructionof an apparatus ordevice to be placed in a fire-place for the purpose of preventing theescape of smoke and gases into the apartment.

The apparatus is illustrated in the accompanying drawings, in which-Figure 1 is a front elevation of a fire-place and mantel having theapparatus referred to; Fig. 2, a horizontal section of the. same; Fig.3, a profile view, and Fig. 4 a central vertical section.

The apparatus comprises two removable parts, one above the other. Thelower part is a chamber or casing, A, provided with legs a, on which itrests. The upper part is asccoud chamber or casing, 13, forming aprolongation of the chamber A. Theapparatus is set against the rear wallof the tire-place, the casing or chamber B extending up into the fine orchimney. The front or face I) of the casing A is inclined slightlyforward from the bottom up and is provided with a number of openings, 0,through which a part of the gaseous products of combustion are intendedto pass. The front or face I) of the upper casing, B, is likewiseinclined slightly outward, so that the line will be contracted at thethroat of the chimney, whereby the velocity of the gases that ascend atthat point will be accelerated. The flue or chimney is thus divided intotwo parts namely, that which is within the upper casing, B, and thatindicated by the letter 0, between the casing B and the breast of thechimney.

As certain fines smoke only occasionally, or according to the conditionof the atmosphere or other circumstances, the casing A is providcd witha damper, D, supported on two joui'nabpins, d, and capable of beingturned by means of a lever-arm, E. The lower edge of the latter isserrated, so that it may be engaged and held by a stationary catch. e,in any desired position.

By drawing arm E forward the damper may thus be more or less opened andthe draft regulated at pleasure. The dotted lines, Fig. 4:, show theposition of the damper D when opened.

When a fire is burning in a grate in front of chamber A, a portion ofthe gases passes into said chamber through the openings 0. This portionis less mixed with air than that which escapes to the line above thegrate, and is heated to a higher temperature than the latter by thewalls of the casing, which are in contact with the fire, andconsequently it acquires a greater upward velocity than that of thesmoke and gases passing up through the part c of the flue. Thus thesmoke and gases outside the chamber or casing ascend by their own forceand are also drawn upward by the force of the current through thechambers A and B. In this way no smoke will be pea mitted to remainfloating above the grate or to escape into the apartment.

I claim 1. An apparatus for improving the draft in fire-places andpreventing smoking, said apparatus comprising a chamber or casing, anupper casing or chamber forming a prolongation of the first and adaptedto extend into the flue of the chimney, the lower chamberorcasiug beingprovided with openings. for the admission of gases from the fireplaceand with a damper for regulating the draft therein, substantially asdescribed.

2. The combination of the lower casing having a face or front inclinedoutward toward the top and openings therein for admission of part of thesmoke and gases from the fireplace, and the upper casing forming aprolongation of the first and having its front similarly i11- clined,said casings filling part of the flue space, whereby the smoke and gasespassing through them and becoming heated assist in creating a draft inthe portion of the flue outside of the same, substantially as described.

In testimony whereof I have signed this specification in the presence oftwo snbscribing witnesses.

ARMAND GASSIS.

\Vitnesscs:

I. DUPONT, CH. CASALONGA.

